Jacob w



(No Model.)

J. W. BAKER & G. A. PRESCOTT.

GAR COUPLING.

Patented Dec. 7, 1886.

INVENTOR 1 W BY WITNESSES ATTORNEYS.

UNITED STATES PATENT OFFICE.

JACOB XV. BAKER AND GEORGE A. PRESCOTT, OF DOVER, NEW JERSEY.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 353,838 dated December 7. 1886.

(No model.)

To all whom it may concern.-

Be it known that we, J AOOB W. BAKER and GEORGE A. PRESCOTT, of Dover, in the county of Morris and the State of New Jersey, have invented a new and Improved Draw-Bar and Connections, of which the following is a full, clear, and exact description.

Our invention relates to the construction of a novel form of draw-bar and connections, the parts constituting a car-coupling when provided with the ordinary form ofcoupling-link; and the invention consists of certain novel construclions and con1binations,to be hereinafter described, and specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure l is a central longitudinal sectional View of our improved form of draw-bar and connections, the parts upon the right being shown in the position they assume when the coupling-pin is in place within the aperture of the coupling-link, while upon the left the parts are represented as in the position they assume when the coupling-pin has been raised to release the link, the gravity-block being shown in position beneath the point of the pin. Fig. 2 is a face view of the draw-bar. Fig. 3 is a plan view thereof, and Fig. 4 is a cross-sectional View taken on the line :10 0c of Fig. 3.

In the drawings, 10 represents the draw-bar, that is formed, as usual, with a draw-head, as shown at 11. this draw-head being provided or formed with the ordinary form of link-recess 12. Behind the recess 12 there is a re cess, 13, formed in the drawbar 10, the upper and lower defining walls or faces of this recess being inclined downward toward the front of the draw-head, as is clearly shown in Fig. 1, while below the recess 13 there is a smaller recess, 14, the purpose of which will be presently described.

Within the recess 13 thereis mounted a sliding block, 15. that is formed with alugorprojection. 3, and with a shoulder, 2, and this block is prevented from becoming accidentally misplaoed bya cover, 16. the side edges of which flare outward, as shown at 4 in Fig.

4, to fit within dovetailed grooves formed by ribs or flanges 5. The forward end, 6, of the cover 16 is bent upward, so as to close the space between the upper face of the draw-bar proper and the upper face of the draw-head, the cover being held against displacement by a downwardly-bent finger, 7, whichfits within a recess, 8, that is formed in the draw-bar.

In connection with the draw-bar described, we prefer to employ such a pin as the one illustrated at 30 in the drawingsthat is to say, a coupling-pin formed with a forwardlyextending projection, 17, that is formed with a slot, 9, within which there is fitted a camarm, 18, that is rigidly connected with a horizontal cross-shaft, 19, saidshaft being mounted in proper bearings that are secured to the dead-wood at the end of the car, each end of the shaft being provided with handles or crankarms 20. The lower end of the coupling-pin 30 is recessed. as shown at 21.

Such being the general construction of our improved form of draw-bar and its connections, it will be seen that if the shaft 19 is turned so as to throw the cam-arm 18 in the direction of the arrow shown in connection therewith at the right in Fig. 1, the couplingpin will be drawn upward and partially out of the draW-head.th us releasing the coupling-link and permitting the sliding block 15 to move downward to the position in which it is shown at the left in Fig. 1-lhat is, to a position so that the curved upper face, 22, of the block will fit in the curved recess 21 of the couplingpin, theshoulder2 strikingagainsttheperipheral face of the pin, while the lug or projection 3 will rest within the recess 14 of the draw-bar l0. \Vhen the parts are in this position, were it not for the lug 3 the weight of the coupling-pin might tend to cant the block 15; but this cant-ing is prevented by the lug 3. In coupling with the link of an approaching car, said link upon entering the recess 12 will strike the forward curved face of the block 15 and force the block diagonally upward, thereby permitting the pin to drop within the central aperture of the link-that is, to the position shown upon the right in Fig. 1.

The cam-faced arm 18 serves not only as a lifting attachment for the pin, but should the pin become jammed the cam will act to force the pin downward. The object of forming the extension 17 so that it inclines forward is to prevent the jamming of the pin within its 5 aperture in the draw-head, for, when two cars come'together the shock will tend to throw the upper end of the pin forward, and were it not for the forward incline this forward movement would be possible, but by inclining the extension forward it will strike against the face of the cam-arm and the position of the pin will not be materially changed. 7

Any of the well-known forms of link-adjuster could be used in connection with the I 5 parts above described, and it will of course be understood that by providing proper connections the shaft 19 could be operated from the top of the car.

Having thus fully described our invention, 20 We claim as new and desire to secure by Letters Patent- 4 1. The combination, with the draw-bar 10, provided with the link-recess 12, the recess 13 in rear of the recess 12, and having upper and I 25 lower inclined walls, and the recess 14below the recess 13, of the block 15, having the curved upper face, 22, and provided with the shoulder 2 and lug 3, and the coupling-pin 30,

shown and described.

3. The combination, with the draw-bar and the coupling-pin 30, provided with the forwardly-extending projection 17, having slot 9, of the shaft 19,and the cam-arm 18, secured to the said shaft and projecting through the slot of the pin, substantially as herein shown and described.

J. W. BAKER. v GEORGE A. PRESCOTT. Witnesses:

WM. S. WHITE,

JAMES H., NEIGHBOUR. 

